Raise the wing spoilers and watch as the virtual hydraulic fluid moves through the system and causes the pressure and quantity to change in real time. Developed over three years with technical input from Boeing and a team of real-life 737NG crew and maintenance advisors, we have painstakingly modeled nearly every system on the real aircraft in a fully dynamic and realistic manner. The PMDG 737NGX features an unprecedented level of systems fidelity.